Typewriting machine



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E. E. BARNEY TYPEWRITI NG MACHINE Filed June 27 1922 2 ,Sheets-Sheet 2 WITNEEEEE zw Qa@ tented ay 22, 1923..

U 'r 'r 'ra EDWIN BARNEY, 0F NEW ROCHELLE, NEW YORK, ASSIGNOR TO REMINGTON TYPE- y WRITER COMPANY, OF ILION, NEW YORK, A CORPORATION OF NEW YORK.

TYPEWRITING MACHINE.

Application led June 27, 1922. Serial N'o. 571,196.

To all who/m it may concern:

Be it known that I, EDWIN E. BARNEY,

citizen of the United States, and resident of New Rochelle, in the county of 'Vestchester, and State of New York, have invented certain new and useful Improvements in Typewriting Machines, of which the following is a specification.

My invention relates to typewriting and like machines, and more particularly to margin stop mechanism for such machines. l

In some typewriting machines the margln stop mechanism for arresting the carriage in its return movement is arranged at the front of the carriage, whereas the escapement mechanism is arranged at the rear thereof. When the carriage is violently thrown or moved to the right, as is usually the case, there is apt to result a certain amount of spring in the carriage when arrested by the margin stops. Thus when the front of the carriage frame is arrested by the stops the rear feedrack carrying-portion of the frame overthrows or springs beyond the point where the front of the carriage is arrested. The effect of this is to cause the feed rack to move to the right beyond the point where the front of the carriage is arrested, and bring about an arrest of the carriage at a point other than that intended by the setting ofthe adj ustable margin stop, as will hereinafter more fully appear.

The main ob `ect of my present invention 1s to overcome this difficulty, and provide simple and efective means which will always accurately arrest the carriage at a predetermined point whether the carriage be returned by a gentle movement or is more or less violently thrown back against the margin stop on the frame.

To the above and other ends which will hereinafter appear, my invention consists in the features of construction, arrangements of parts, and combinations of devices set forth in the following description and particularly Vpointed out in the appended claims.

In the accompanying drawings wherein like reference characters indicate corresponding parts in the different views,

Figure 1 is a fragmentary top plan view, with parts. -in section and parts omitted, of the upper portion of an improved Remington standard machine embodying my invention.

Figure 2 is a fragmentary side view of the same with parts in section.

Figure 3 is a fragmentary detail perspective view showing'v a portion of the carriage and some of the devices of my invention carried thereby.

I have shown my invention in the present instance embodied in an improved Remington standard machine in which the invention may be incorporated without materially changing the existing structural features of said machine. However, the invention is not restricted to its use in such a machine but may be embodied in other styles of typewriting or like machines wherever an adoption of the invention may be found available.

In the accompanying drawings I have shown only so much of the improved Remington standard machine as is necessary t0 arrive at an understanding of my invention in its incorporation therein.

The usual construction includes a carriage, designated as a whole by the reference numeral 1, which comprises a rectangular frame formed with a front cross bar 2, end or side bars 3 and a rear cross bar 4f. The carriage is mounted on Crossed rollers 5 received in grooved tracks in the front and rear cross bars 2 and 4 respectively of the carriage, and in front and rear fixed guide rails 6 and 7 respectively. The carriage is thus supported to travel from side to side of the machine over the top plate 8. The carriage carries a platen 9, and also a feed rack l0 which is pivotally supported thereon at 11 in the rear of the carriage, where the teeth 12 ofthe rack enga-ge a feed pinion 13 operatively connected in the usual manner with an escapement wheel, not shown. At the front of the carriage, and extending longitudinally of the front cross bar and substantially throughout the length thereof, is a stop bar, carrier or member Min the nature of a rack bar. The teeth 15 of this bar are located at letter space intervals and are engaged vby a primary traveling margin stop 16 and by a final traveling margin stop 17. These stops may be individually adjusted to different fixed posil tions along the stop or rack bar `let, to predetermine the points of arrest of the carriage in its return movement to the right. The construction of the stops 16 and 17 is such that when they are relatively adjusted to the position shown in Fig. l, the contact or arresting face of the stop 16 is coincident with the contact face 18 of the stop 17, so that they are in effect one stop at this time. The contact faces of these stops co-act with the left-hand face 19 of a stop 2() mounted in bearings 21 carried by the frame of the machine in front of the carriage.

A carriage scale 22 is mounted on top of the front cross bar ,of the carriage and coacts with a fixed pointer 23 to indicate the position of the carriage. This scale also is available to indicate the positions to which the margin stops 16 and 17 are set.

The parts of the construction as thus far described are those used in the improved Remington standard machine and further detailed description thereof is deemed unnecessary, except to point out the action of the margin stop mechanism and the diiiculties inherent therein, and which I overcome by the present invention.

As at present constituted, the 'margin stop mechanism of the Remington machine requires a very nice adjustment of the parts, and even then at times the carriage will not be arrested at the proper predetermined p-oint. Thus ordinarily the adjustment and relative arrangement lof the parts are such that if the adjustable margin stop be set at, say, 10 on the carriage scale, the carriage will be arrested accurately and without a drop-back to the left-from said point if the carriage is returned, as it ordinarily is, with some force.` The slight spring or overthrow at the rear of the carriage is relied upon to slightly overthrow the feed rack 1() and bring it and the other members of the escapement mechanism into such relation as to hold the carriage against a backl drop to the left, and with the margin stop 16 held against the face of its co-operative stop 20, as shown in Fig. 1. If, however, the operator should return the carriage to the right gently so as to avoid giving a slight overthrow to the rack, then the carriage, instead of being arrested at 10 will drop back to the left, say, one letter space to the index indicating nine on the carriage scale. The operato-r usually does not observe this erroneous arrest of the carriage and proceeds to write` beginning the line at nine instead of at the point 10 on the scale. Then again. if the carriage be returned with too much force, the extent of overthrow at the rear of the carriage is such that the force exerted by the sprung parts on the escapement members is such as to resist the depression of the printing keys and the space key, and thus tie up the machine. A

By my invention these difficulties are overcome and the carriage is alwaysbrought to rest at the proper predetermined point whether the carriage be more or less violently returned, or be gently moved back to begin a new line of writing. The means by which I attain these ends will now be described, but before proceeding to describe. such construction it may be pointed out that in accordance with my invention I do not rely on the hereinbefore mentioned springing ofthe carriage to aid in effecting l,the proper arrest of the carriage. On the other hand I provide means which prevents such springing thereof, and causes the rea-r of the carriage to be positively arrested at the same instant that the front thereof is arrested. The adjustment of the parts is such that the escapement will hold the carriage against a drop-back beyond the proper point when the carriage comes to rest, and whether the carriage be returned gently or violently the predetermined point of arrest will always be the same.

In carryingg-Qut this purpose I slightly modify the action of the usual margin stops so that the carriage is enabled to travel to the right independently thereof a fraction of a letter space after the stops are engaged. I utilize this independent movement of the carriage to automatically throw a Stop or pawl on the rear of the carriage into effective position where it engages the tooth of a fixed ratchet or stop, and thusb-rings about an arrest of the carriage at the rear thereof at the same instant that the carriage has completed its independent movement to the right and brought about an arrest of the carriage at the front thereof. Instead of fixing the rack bar 14 to the carriage, as ordinarily, I provide means whereby the carriage is enabled to receive a slight movement independently of the rack bar for,v say, a fraction of a letter space distance. Thus, instead of the rack bar 14 having its ends abut both brackets 24 and 25 on the carriage, I make the bar shorter than the distance between the contact faces of these brackets by a fraction of a letter space,.as indicated at 26, Fig. 1. In order that the rack bar 14 may he mounted on the carriage for relative longitudinal movement, I prefer to construct the parts in the following manner. The rack bar 14, which is rectangular in cross section, has a sheet metal plate 27 spotv welded, or otherwise fixedly secured thereto. This plate extends throughout, or substantially throughout, the length of the rack bar and projects forwardly from the bar, terminating in a downwardly bent flange 28. The bottom of the rack bar rests on top of the usual sheet metal cover plate 29 secured to the front cross bar 2 of the carriage. Extending upwardly in the rear of the rack' bar 14, then over/the'top of the plate 27 seplace in a different manner. This housing surrounds the bar 14 and its plate 2T on three sides, and with the supporting plate 29 forms a guide and support for the rack bar in the limited relative movements between it and the carriage, permitted by the space 26. The housing 3() is secured to the carriage by suitable means such as the screws 31, which are employed to attach the housing to the front cross bar 2 at the rear thereof. From an inspection of Fig. 2 it Will be understood that the margin stops 16 and 17 extend from the inside to the outside of the housing through the space between the edge 32 of the housing and the plate 29, and may have their teeth disengage from the rack teeth 15 v by manipulating the finger pieces 33 and 34 respectively. The left-hand end of the stop bar 14 is bored centrally at 35 to receive a coiled expansion spring 36. One end of this spring bears against the bottom wall of the bore, whereas the other end bears against the bracket 25. The spring thus exerts its force to shift the bar 13 to the right with the righthand end of said bar bearing against the bracket 24, as shown in Fig. 1, and to normally maintain the parts in such relation.

From an inspection of Fig. 3, it will be seen that a sheet metal bracket 37 has its foot piece secured to the stop bar 14 by screws 38; the housing 3() being cut out at 39 to receive said foot piece. A depending portion of this bracket carries a horlzontally disposed contact piece or actuating member 40. This member has a curved edge 41 which co-acts with an edge of a horizontally disposed lever or bell crank 42 arranged beneath the carriage. Said lever is pivoted on a shouldered pivot screw 43 secured in a tapped opening in a block 44 fixed to the carriage. An engaging nose 45 on the lever 42 co-acts with a horizontally projecting lug 46 bent inwardly from a. sheet metal link or .'member 47; the lug projectin at right angles to the plane of said link. his l1nk extends fore and aft of the machine along the outside of and adjacent to the left-hand side bar 3 of the carriage, and from front to rear thereof. The link is supported in place on the carriage, and is guidedin its fore and aft movement thereon, by two shouldered screws 48 threaded into tapped openings in the lefthand side bar 3 and extending through horizontal slots 49 in said link. Preferably the two screws 48 are the same screws by which the usual left-hand carriage release lever (not shown) is pivoted to and guided on the carriage. The rear end of the link 47 has a hook-like engaging portion 5l) extending upwardly therefrom into the path of one arm 51 of a pawl, enga ing member or stop, designated as a who e by the reference numeral 52. This pawl is pivoted on the upper Side of the carnage 0n a ShOuldered pivot screw 53 to turn in ar horizontal plane. A second arm 54 of this paWl coacts With the leaf spring 55, secured at one end by a screw 56 to the carriage. The force of this spring is exerted on the pawl 52 to turn it on its pivot, so as to disengage the nose 57 of the paWl from the teeth 58 of the ratchet bar or stop member 59. This bar is ixedly held to the frame of the machine, though it is preferably adjustable inthe direction of its ength. In the present instance the ratchet bar is adjustably secured in place by headed screws 60 the stems of which pass through horizontal slots 61 in the ratchet bar 59 and are received in tapped openings in the rear fixed guide rail 7. The teeth 58 on the ratchet bar are arranged at letter space intervals, so as to accord with the spacing of the teeth 15 for the adjustable margin stops. The ratchet bar 59 extends from the extreme left-hand end of the rear guide rail 7 to a point near the feed pinion 13, a distance suflicient to cover the required range of adjustment of the margin stops'.

It will be observed that the pawl 52 and fixed ratchet bar 59 co-act to resist a movement of the carriage to the right at the rear thereof and adjacent to the line of travel of the feed rack 10, so as to effectively prevent an overthrow of the rack to the right.

The operation of the construction is as follows The margin stops 16 and 17 are first adjusted to, say, 10, as indicated in Fig. 1. When the carriage is returned to the right by hand either more or less violently or gently. the engaging faces of the traveling margin stops 16 and 17 will co-act with the stop 20, thereby holding the traveling stops and the stop bar 14 While the carriage continues to move to the right independently thereof. This -independent movement o f the carriage continues for a fraction of a letter space distance or until the bracket 25 closes the space 26 and coacts with the left-hand end of the bar 14, when further independent movement of the carriage to the right is arrested. Fig. 1 illustrates the disposition of the parts at the time when the stops 16 and 17 have just been brought into engagement with the stop 20, but before anyl independent movement of the carriage has been effected. The independent movement of the carriage just described is effective to carry the pivoted end of the lever 42 along with the carriage while the rear free end thereof is held against movement to the right With the carriage by the member 40 on the previously arrested stop rod 14. Thisl results in turning the lever 42 on its pivot from right to left and transmitting the forward movement to the link 47. The link thus movedy turns the pawl 52 ou its pivot a ainst the spring 55, and forces the nose 57 o the pawl into engagement with a tooth 58 of the ratchet bar 59 in the rear of the carriage. The parts are so timed and adjusted that the pawl 52 will engage a tooth 58 of the ratchet at the same instant that the bracketl 25 reaches the left-hand end of the arrested stop bar 14. Itfollows, therefore, that the carriage will be arrested in its movement to the right at the front and rear portionsv thereof at the same instant. Consequently there can beno overthrow of the rear of the carriage beyond the point Where the front it is arrested. The carriage having moved, say, a half letter space distance be yond the point where the pointer 23 registers with the mark 10 before the carriage is arrested by the stops at the 4front and back of the carriage, said-carriage will, as soon as it is released by the operator, drop back half a letter space independently of the stop bar 14, leaving the parts as represented in Fig. 1; the carriage being held in such position by the escapement mechanism. IVhen the operator releases the carria re from the pressure which returned it to t e right, the springs 36 and 54, as well as the ordinary carriage spring, bring about a resumption of the relation of the parts represented in Fig. 1.

It will be seen that it is due to the co-ac. tion of the stop 16 or 17 with the stop 20, that the actuating member 40 is held against return movement with the carriage to its extreme right-hand position, and that due to this fact an actuation of the paWl 52 is automatically effected. Therefore, the action of the pair 'of margin stops 16 or 17 and 2O may be said to control the effectiveness or render operative the members 52 and 59 to arrest the carriage.

The members 52 and 59 may be regarded as a palr of (zo-operative margin stops one normally out of the path of the other, Whereas a second pair of (zo-operative margin stops are employed' at the front of the machine, the first pair of stops operating without the necessity of prior adjustment to simultaneously arrest the carriage at the same point predetermined by an adjustment of the adjustable`stop` 16 or 17 of the second pair of stops. Stated from another point of view, I have provided automatically operating means controlled by the action of one margin stop mechanism for rendering a second margin stop mechanism effective to arrest the carriage at the same predetermined point at which the carriage is arrested by the first mentioned stop mechanism.

From the foregoing description it will be understood that by mv invention I have provided simple and efficient means for overcoming the difficulties pointed out, and for arresting the carriage at the same instant at two different points, or at the front and rear of the machine,

Various changes may be made withoutdeparting from my invention.

What Iiclaim as new and desire to secure by Letters Patent, is

1. In a typewriting or like machine, the combination of a carriage, and two pairs 0f co-operative margin stops, the stops of both pairs operating simultaneously to stop the return movement of the carriage and thereby prevent a springing of part'thereof by momentum.

2. In a typewrit-ing or like machine, the combination of a carriage, a pair of cooperative margin stops at the front of the carriage, and a pair of co-operative margin stops at the rear of the carriage, the stops of both pairs operating to simultaneously effect an arrest of the carriage at the same predetermined point.

3. In a typewriting or like machine, the combination of a carriage, escapement mechanism therefor including a feed rack carriedk by the carriage, a pair of cio-operative margin stops arranged adjacent to the line of travel of said feed rack, and a second pair of co-opera-tive margin stops at the front of the machine, the stops of both pairs operating to simultaneously effect an arrest of the carriage at the same predetermined point.

4. In a typewriting or like machine, the combination of a carriage, a pair of co-operative margin stops for arresting the carriage in its return movement` a second pair of cooperative margin stops, and automatically operatingmeans controlled by the action of said first mentioned pair of stops one on the other to render said second pair of stops effective to prevent springing of the carriage in return direction beyond the point of arrest determined by the first recited pair of margin stops.

5. In a typewriting or like machine, the combination of a carriage, a pair of margin stops one normally in the path of the other, a second pair of margin stops one normally out of the path of the other. and means controlled by the action of said first mentioned pair of stops one on the other to bring one of the second pair of stops in the path of the other and simultaneously effect an arrest of the carriage at the same point in its return movement that it is arrested by the first pair of stops.

6. In a typewriting or like machine, the combination of a carriage, a pair of margin stops one adjustable to determine the point of arrest of the carriage, and a second pair of margin stops effective to arrest the carriage in its return movement simultaneously with said first mentioned pair as determined by the adjustment of said adjustable stop.

7. In a typewriting or like machine, the combination of a carriage, a, pair of margin stops one adjustable to determine the point of arrest of the carriage,and one stop normally inthe path of the other, a second pair of margin stops one normally out of the path of the ot-her, and means controlled by the action of said first mentioned stops to throw one of the stops of the second pair into the path of the other and arrest the carriage at the same point at which it is arrested by the first mentioned pair as determined by the adjustment of said adjustable stop.

8. In a typewriting or like machine, the combination of a carriage, co-operative margin stops for `arresting the carriage in its return movement, a pawl and co-operative ratchet, and automatically operating means for bringing about an engagement between said pawl and ratchet to check the return movement of the carriage to the right and thereby prevent the carriage from springing by momentum beyond the point at which it is arrested by said margin sto s.

9 In a typewriting or like machine, t e

r combination of a carriage. co-operative margin stops for'arresting the carriage in its return movement and one of which is adjustable to determine the point of arrest of the carriage, a pawl and cooperative ratchet, and automatically operating means for bringing about an engagement between said pawl and ratchet at varying points along the latter depending on the adjustment of said adjustable stop and thereby also stopping the return movement of the carriage to the right and thereby prevent the carriao'e from springing by momentum beyond tIie point at which it is arrested by said margin stops 10. In a typewriting or like machine, the combination of a carriage, a pair of co-operative margin stops for arresting the carriage in its return movement, one of which is relatively shiftable by the other on the part that carries it, a second pair of margin stops, and means for utilizing said relative shifting movement to bring the second pair of stops into co-operative relation.

11. In a typewriting or like'machine, the combination of a carriage, a pair of co-operative margin stops for arresting the carriage in its return movement and one of which is relatively Shiftable in the direction of the travel of the carriage on the part that carriesit, a pawl and co-operative ratchet, and means for utilizing said relative shifting movement to bring labout an engagement between said pawl and ratchet to aitI in arresting the carriage in its return movement.

1.2. In a typewriting or like machine, the combination of a carriage, a pair of co-operative margin stops for arresting the carriage 1n its return movement, one of which is relatively shitable by the. other on the part that carries it, and one of said stops being adjustable to different positions to predetermine the point of arrest of the carriage in its return movement, a pawl, a ratchet engaged by the pawl to arrest the carriage in its return movement, and means for utilizing said relative movement to bring about an engagement between said pawl and ratchet, the pawl engaging at different points along said ratchet depending on the adjustment of said adjustable stop. v

13. In a typewriting or like machine, the combination of a carriage, a pair of margin stops for arresting the carriage in its return movement and one of which is carried by the frame of the machine and the other by the carriage and enabling the carriage to receive a limited lmovement independently thereof after the stops engage, a second arresting means for effecting an arrest of the carriage in its return movement at the same point at which it is arrested by said margin stops, and means for utilizing said limited independent movement of the carriage tobring said second arresting means into operation.

14. In a typewriting or like machine, the

combination of a carriage, a pair of co-0per' ative margin stops at the front of the carriage, a pair of margin stops at the rear of Athe machine, and means controlled by action of arresting the carriage by said first mentioned margin stops for rendering the second pair of margin stops eifective.

15. In a typewriting or like machine, the combination of a carriage, a pair of co-operative margin stops at the front of the carriage, a pawl and co-operative ratchet at the rear of the carriage, and means controlled by the action of arresting the carriage by said margin stops for bringing about the engagement between said pawl and ratchet to effect an arrest of the carriage at the rear thereof at the same time that the front of the carriage is arrested by said stops.

16. In a typewriting or like machine, the combination of a carriage, a pair of co-operative margin sto s at the front of the carriage, one of sai stops being. adjustable to predetermine the point of arrest ofthe carriage, a pawl and co-operative ratchet at the rear of the carriage, and means controlled by the action of arresting the carriage by said margin stops for bringing about the engagement between said pawl and ratchet to effect an arrest of the carriage at the rear thereof at the same time that the front of the carriage is arrested by said stops, the pawl vengaging at different points along the ratchet depending on the adjustment of said adj ustable margin stop.

17. In a typewriting or like machine, the combination of a carriage, a margin stop carried by the frame of the machine at the front thereof, a co-operative margin stop mountedY on the carriage at the front thereof and enabling the carriage to recelve a limlted movement independently thereof, a ratchet fixed to the frame of the machine near the rear of the carriage, a pawl carried by the carriage and co-operative with said ratchet, and intermediate actuating connections between the stop on the carriage and said pawl to throw the latter into engagement with the ratchet when an arrest of the carriage at the front thereof is brought about by said margin stops.

18. In a typewriting or like machine, the combination of a carriage, a margin stop carried by the f 1ame of the machine at the front thereof, a co-operative margin stop carried by and adjustable on the carriage at the front thereof and enabling the carriage to receive a limited movement independently thereof, a ratchet fixed to the frame of the machine near the rear of the carriage, a pawl carried by the carriage and co-operative with said ratchet, and intermediate actuating connections between the stop on the carriage and said pawl to throw the latter into engagement with the ratchet when an arrest of the carriage at the front thereof is brought about by said margin stops, the pawl engaging at different points along the ratchet depending on the adjustment of said adjustable stop. y

19. In a typewriting or like machine, the combination of a carriage, a margin stop carried by the, frame of the machine, a rack carried by the carriage and mounted to enable the carriage to receive a 'limited movement independently thereof, a second margin stop carried by and adjustable along said rack to determine the point of arrest of the carriage, a pawl carried by the carriage, operative connections between said rack and pawl whereby the pawl is moved to effective position by limited movement of the carriage independently of the rack, and a ratchet carried bv the frame of the machine and with which said pawl is engaged to arrest the carriage at the same time that the margin stops effect an arrest of the carriage.

20. In a typewriting or like machine, the combination of a carriage, a housing carried thereby, a spring-pressed stop carrier contained in said housing and mounted for movement relativclv to the carriage, a margin stop carried by said carrier, a co-operative margin stop on the frame of the machine, a second margin stop mechanism, and automatically operating means controlled by the relative movement between the carriage and said stop carrier for rendering said second stop mechanism effective.

21. In a typewriting or like machine, the combination of a carriage, a housing carried thereby, a spring-pressed stop carrier contained in said housing and mounted for movement relativelv to the carriage, a margin stop carried bv said carrier, a co-operative margin ston on the frame of the machine effective to hold said stop carrier against movement while the carriage moves independently thereof, operating means carried by the carriage and operated by the relative movement between the carriage and said stop .carrier when the latter is held by the stop on the frame of the machine, and a second set of stop devices rendered effective by said operating means.

22. In a typewriting or like machine, the combination of a carriage, a margin stop carried thereby and mounted for relative movementthereon, a lever carried by the carriage and actuated by the relative movement between the carriage and said stop, normally ineective carriage arresting means which are rendered effective by an actuation of said lever, and a second margin stop carried by the frame of the machine and with which said first mentioned margin stop co-acts to arrest the carriage and to bring about an operation of said lever and thus also effect an arrest of the carriage by the normally ineffective arresting means.

23. In a typewriting machine, the combination of a carriage, a pair of margin stops for arresting the return movement of the carriage, and means comparatively widely separated from said margin stops considered crosswise of the carriage for preventing a part of said carriage from continuing in the direction of the return carriage movement after said pair of margin stops have collided.

Signed at the borough of Manhattan, city of New York, in the county of New York and State of NewYork, this 26th day of June, A. D. 1922.

- EDWIN E. BARNEY. Witnesses:

CHARLES E. SMITH, LILLIAN NELSON. 

